Thermal load of three-fan cooling system of a graphic processing unit(GPU)

Che Aziz, Aizuddin Azri (2022) Thermal load of three-fan cooling system of a graphic processing unit(GPU). Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Graphics Processing Unit (GPU) has gone through many revolutionary changes throughout the decade. GPU’s processing power can challenge the existing Central Processing Unit (CPU) in the task of running high-profile software. However, any electronics that flow current into it will generate heat. The thermal problem is the major problem for GPUs. The optimal operating GPU requires minimum fan speed and core temperature with the highest efficiency (hashing power). This research focused on obtaining the optimal response at a certain core clock and memory clock via the optimization tool of Design-Expert software. The response was recorded while applying constant amount of power supplied to the GPU. The GPU used is in the category of three-fan which is ASUS ROG Strix GTX1070. The relationship between the clocking (core and memory) and GPU responses (fan speed, core temperature, hash rate) were observed. By that, Central Composite Design (CCD) generated one equation for each fan speed, core temperature, and hash rate. Next, the optimization process suggests several new clocks settings that give the best performance than the current setting. For the validation and confirmation process, the best one core and memory clock was selected. The results from the validation process prove that the predicted response was precise with less than 2% deviation.

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